✨ feat(skills): add tsl syntax reference skill

test/cli/test_install_skills.py

@@ -34,7 +34,8 @@ class InstallSkillsTests(unittest.TestCase):
         agents_index = (root / ".agents" / "tsl" / "index.md").read_text(
             encoding="utf-8"
         )
-        self.assertIn(f"`{docs_prefix}/tsl/index.md`", agents_index)
+        self.assertIn("`tsl-syntax-reference`", agents_index)
+        self.assertIn("`tsl-api-reference`", agents_index)
         self.assertNotIn("`docs/tsl/index.md`", agents_index)
 
         skill_file = (agents_home / "skills" / "style-cleanup" / "SKILL.md").read_text(
@@ -90,6 +91,31 @@ skills = ["karpathy-guidelines"]
             self.assertEqual(result.returncode, 0, msg=result.stdout + result.stderr)
             self.assertTrue(skill_file.is_file())
 
+    def test_install_skills_installs_tsl_syntax_reference(self):
+        with tempfile.TemporaryDirectory() as tmp_dir:
+            target = Path(tmp_dir) / "agents"
+            config_body = f"""
+[playbook]
+project_root = "{tmp_dir}"
+playbook_root = "{CUSTOM_DEPLOY_ROOT}"
+install_mode = "snapshot"
+
+[install_skills]
+agents_home = "{target}"
+mode = "list"
+skills = ["tsl-syntax-reference"]
+"""
+            config_path = Path(tmp_dir) / "playbook.toml"
+            config_path.write_text(config_body, encoding="utf-8")
+
+            result = run_cli("-config", str(config_path))
+
+            skill = target / "skills" / "tsl-syntax-reference"
+            self.assertEqual(result.returncode, 0, msg=result.stdout + result.stderr)
+            self.assertTrue((skill / "SKILL.md").is_file())
+            self.assertTrue((skill / "agents" / "openai.yaml").is_file())
+            self.assertTrue((skill / "references" / "index.md").is_file())
+
     def test_install_skills_rejects_removed_tsl_guide(self):
         with tempfile.TemporaryDirectory() as tmp_dir:
             target = Path(tmp_dir) / "agents"